The Barbra Streisand album you just bought – “Walls” – turned out to be a sonorous lament about Presidential lies and a truth that’s “defiled every day”, Carole King has come out of retirement to “empower people” with her anti-Trump anthem (hastily adapted from an old hit song, ‘One’) and if you switched on the telly across America last night, watched YouTube or logged into Facebook Live, you’d have been confronted by a telethon panel of “non-partisan” actresses and comedians like Amy Schumer...